553003993 has 2 divisors, whose sum is σ = 553003994. Its totient is φ = 553003992.

The previous prime is 553003963. The next prime is 553004027. The reversal of 553003993 is 399300355.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 480617929 + 72386064 = 21923^2 + 8508^2 .

It is a cyclic number.

It is not a de Polignac number, because 553003993 - 2⁹ = 553003481 is a prime.

It is not a weakly prime, because it can be changed into another prime (553003933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276501996 + 276501997.

It is an arithmetic number, because the mean of its divisors is an integer number (276501997).

Almost surely, 2^553003993 is an apocalyptic number.

It is an amenable number.

553003993 is a deficient number, since it is larger than the sum of its proper divisors (1).

553003993 is an equidigital number, since it uses as much as digits as its factorization.

553003993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54675, while the sum is 37.

The square root of 553003993 is about 23516.0369322724. The cubic root of 553003993 is about 820.8102208912.

The spelling of 553003993 in words is "five hundred fifty-three million, three thousand, nine hundred ninety-three".